<template>
  <el-dialog
    :title="type == 'add' ? '添加分类' : '修改分类'"
    v-model="visible"
    width="400px"
  >
    <el-form
      :model="ruleForm"
      :rules="rules"
      ref="formRef"
      label-width="100px"
      class="good-form"
    >
      <el-form-item label="商品名称" prop="name">
        <el-input type="text" v-model="ruleForm.name"></el-input>
      </el-form-item>
      <el-form-item label="排序值" prop="rank">
        <el-input type="number" v-model="ruleForm.rank"></el-input>
      </el-form-item>
    </el-form>
    <template #footer>
      <span class="dialog-footer">
        <el-button @click="visible = false">取 消</el-button>
        <el-button type="primary" @click="submitForm">确 定</el-button>
      </span>
    </template>
  </el-dialog>
</template>

<script>
import { reactive, ref, toRefs } from "vue";
import { useRoute } from "vue-router";
import axios from "@/utils/axios";
import { ElMessage } from "element-plus";
export default {
  name: "DialogAddCategory",
  props: {
    type: String, // 用于判断是添加还是编辑
    reload: Function, // 添加或修改完后，刷新列表页
  },
  setup(props) {
    const formRef = ref(null);
    const route = useRoute();
    const state = reactive({
      visible: false,
      categoryLevel: 1,
      parentId: 0,
      ruleForm: {
        name: "",
        rank: "",
      },
      rules: {
        name: [
          { required: "true", message: "名称不能为空", trigger: ["change"] },
        ],
        rank: [
          { required: "true", message: "编号不能为空", trigger: ["change"] },
        ],
      },
      id: "",
    });
    // 获取详情
    const getDetail = (id) => {
      axios.get(`/api/categories/${id}`).then((res) => {
        state.ruleForm = {
          name: res.categoryName,
          rank: res.categoryRank,
        };
        state.parentId = res.parentId;
        state.categoryLevel = res.categoryLevel;
      });
    };
    // 开启弹窗
    const open = (id) => {
      state.visible = true;
      if (id) {
        state.id = id;
        // 如果是有 id 传入，证明是修改模式
        getDetail(id);
      } else {
        // 否则为新增模式
        // 新增类目，从路由获取分类 level 级别和父分类 id
        const { level = 1, parent_id = 0 } = route.query;
        state.ruleForm = {
          name: "",
          rank: "",
        };
        state.parentId = parent_id;
        state.categoryLevel = level;
      }
    };
    // 关闭弹窗
    const close = () => {
      state.visible = false;
    };
    const submitForm = () => {
      formRef.value.validate((valid) => {
        if (valid) {
          if (props.type == "add") {
            // 添加方法
            axios
              .post("/api/categories", {
                categoryLevel: state.categoryLevel, // 分类等级
                parentId: state.parentId, // 当前分类的父分类 id
                categoryName: state.ruleForm.name, // 分类名称
                categoryRank: state.ruleForm.rank, // 分类权重
              })
              .then(() => {
                ElMessage.success("添加成功");
                state.visible = false;
                // 接口回调之后，运行重新获取列表方法 reload
                if (props.reload) props.reload();
              });
          } else {
            // 修改方法
            axios
              .put("/api/categories", {
                categoryId: state.id,
                categoryLevel: state.categoryLevel,
                parentId: state.categoryLevel,
                categoryName: state.ruleForm.name,
                categoryRank: state.ruleForm.rank,
              })
              .then(() => {
                ElMessage.success("修改成功");
                state.visible = false;
                // 接口回调之后，运行重新获取列表方法 reload
                if (props.reload) props.reload();
              });
          }
        }
      });
    };
    return {
      ...toRefs(state),
      open,
      close,
      formRef,
      submitForm,
    };
  },
};
</script>
